Contrast ratio results for AL1916w

Black
Contrast ratio	2953:1 (edge: 1412:1)
Monitor model	AL1916w
Submitted	22 Nov 2008 02:26 CET, by 98.171..
Camera model	Olympus E-510
Processing remarks	Warning: using the flash makes no sense. Warning: image file 1: camera was zoomed in too much. Warning: image file 1: automatic white balance can cause inaccuracies. Warning: image file 1: Underexposed. Please increase the shutter time. Note: image file 1: suggested exposure time: 15.7 s (Set EV to +3.3) Warning: using the flash makes no sense. Warning: image file 2: camera was zoomed in too much. Warning: image file 2: automatic white balance can cause inaccuracies. Warning: using the flash makes no sense. Warning: image file 3: camera was zoomed in too much. Warning: image file 3: automatic white balance can cause inaccuracies. Warning: image file 3: Underexposed. Please increase the shutter time. Note: image file 3: suggested exposure time: 7.5 s (Set EV to +1.9)
Screen photo	[open image]
Luminance	0.08 cd/m2
Luminance spread	0.04 cd/m2 (2 standard deviations)
Exposure value	–7.47 stops (aim for –2 to –3)
Exposure spread	0.73 stops
Area used for calculation	1 x 1
Camera settings	Exposure time: 0.5 ISO: 400 F-number: 5.6 Focal length: 84.1 mm (35 mm equivalent) Exposure compensation: -1.7
White
Screen photo	[open image]
Luminance	223 cd/m2
Luminance spread	39 cd/m2 (2 standard deviations)
Exposure value	–1.59 stops (aim for –2 to –3)
Exposure spread	0.25 stops
Area used for calculation	1 x 1
Camera settings	Exposure time: 1/100 ISO: 400 F-number: 5.6 Focal length: 84.1 mm (35 mm equivalent) Exposure compensation: 0.7
Black at screen edge
Screen photo	[open image]
Luminance	0.16 cd/m2
Luminance spread	0.05 cd/m2 (2 standard deviations)
Exposure value	–4.73 stops (aim for –2 to –3)
Exposure spread	0.45 stops
Area used for calculation	1 x 1
Camera settings	Exposure time: 1.6 ISO: 400 F-number: 5.6 Focal length: 84.1 mm (35 mm equivalent) Exposure compensation: -0.3

The luminance values in cd/m2 are not very reliable, since camera sensitivities can easily differ up to 50% from their nominal value. Typically, the real luminance is 30% lower than this number. The area used for calculation is chosen such that it corresponds to a viewing angle of ±14° horizontally and ±10.5° vertically, which is equivalent to viewing the screen from a distance of about 1.5 times the diagonal size.

Unfortunately, there is a lot of variation in how cameras use EXIF settings. If photos from your camera your produce unusable results, try coming back in a few days. I review submitted pictures regularly and try to fix problems.